What is DLangKoans GEMINI.md?

Project-specific instructions for the Gemini command-line tool in the DLangKoans repository. They describe the project, its structure, and how to build, run, and test it.

Use them when working on DLangKoans with Gemini CLI, especially for navigating the codebase and running its development tasks.

They give an AI coding tool the repository context needed to follow that project's conventions and commands.

How ilmanzo/DLangKoans configures Gemini CLI

Reuse

Borrowing it

Nothing to install: this file belongs to ilmanzo/DLangKoans. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/ilmanzo/DLangKoans/master/GEMINI.md

Clone the repo

git clone --depth 1 https://github.com/ilmanzo/DLangKoans

Made for: Gemini CLI.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/ilmanzo/dlangkoans/gemini-md/github.svg)](https://agentmods.dev/instructions/ilmanzo/dlangkoans/gemini-md)

Your own site

<a href="https://agentmods.dev/instructions/ilmanzo/dlangkoans/gemini-md"><img src="https://agentmods.dev/badge/instructions/ilmanzo/dlangkoans/gemini-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/ilmanzo/dlangkoans/gemini-md"><img src="https://agentmods.dev/badge/instructions/ilmanzo/dlangkoans/gemini-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,073 This file is loaded in full into every session.

When invoked 1,073 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.01073	$0.01073
Opus 5.5	$0.00429	$0.00429
Sonnet 5.5	$0.00215	$0.00215
Haiku 4.5	$0.00107	$0.00107

Measured 3d ago against content hash 4a09147bfbc9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

DLangKoans GEMINI.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

GEMINI.md · 117 lines

The source is not reproduced here

No licence file

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

3d ago First seen · 117 lines · 1,073 tokens per session scan A 4a09147bfbc9

Subscribe to this mod's changes

DLangKoans GEMINI.md is an instructions file published in the GitHub repository ilmanzo/DLangKoans (24 stars, last pushed 2mo ago), with no licence file. It adds 1,073 tokens to every session, about $0.0043 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-11-07.

Languages d dub hacktoberfest programming-language-koans

DLangKoans GEMINI.md next to 6 instructions from other repositories
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DLangKoans: Instructions file for Gemini CLI